An elderly couple were left in tears after returning home to find a key glued into their front door and 'manure' shoved through their letterbox by a mystery woman.<br /><br />Ken and Diane Lott, both 81, were arriving home from a gig on the Isle of Wight when they discovered the damage on February 9.<br /><br />The couple, who live in Hockley, Essex, found manure had been smeared across their letterbox during the incident which they caught on CCTV.<br /><br />The CCTV footage shows a woman at 10.30pm on February 8 at the front of their property holding manure in newspaper.<br /><br />It also shows the woman at their front door with what they believe is the lid of glue in her mouth and she leans over the keyhole.<br /><br />Mr and Mrs Lott were targeted in a similar act of vandalism on 28 April last year in which shocking CCTV showed paint stripper poured over their cars.<br /><br />They believe the same person is responsible for both incidents and are appealing for the woman to stop.